Originally Posted by
ShyTorque
Military ATZs are deemed to be active at all times. ATZs at civilian airfields are active according to their published opening times.
Shytorque - some great examples there. One tiny tweak to your statement above though. The military ATZ are not all active H24. If you look in the
civilian AIP at ENR 2-2 it list the operating hours of each military ATZ. Some are quite complex (try Cranwell for example) but the principle you express is right - avoid them unless you're positive you have planned in detail/spoken to ATC /
have blacked out your registration.